fedora 17 failed to load kdump kernel

[ssb]

Hello,

I am trying to get information about a totally freeze system using nvidia.

I am setting kdump ... but i got an "kexec: failed to load kdump kernel
running
#systemctl start kdump.service

I've installed all from
1) "http://fedoraproject.org/wiki/How_to_use_kdump_to_debug_kernel_crashes"
i've done yum install,

2) changed sysctl.conf kernel.sysrq = 1
3) grub2.conf llinux /vmlinuz-3.5.2-3.fc17.i686.PAE roo <...> quiet crashkernel=128M

4)/etc/kdump.conf
#raw /dev/sda5
ext4 /dev/sda2
path /var/crash
core_collector makedumpfile -d 31 -c

5)uname -a
Linux starlight 3.5.2-3.fc17.i686.PAE #1 SMP Tue Aug 21 19:27:17 UTC 2012 i686 i686 i386 GNU/Linux

what am i doing wrong ?
help!

[Super Jamie]

How much RAM do you have?

Try crashkernel=auto or larger crashkernel sizes (256M, 512M)

[ssb]

Hello,

I got only 2GB

I've tested using 256, and 512 .. the same problem

is it something about PAE option?

I think that "auto" option it is for >4GB ram ???

Thank you